There's no way they're seriously sharing any kind of timeline with Faerun.

[Like, really? That would be total amateur hour.]

If this were Earth, and us immortals from there were watching this, I think we'd be able to see into each of the loops just fine. But we're a lot more separated from Earth than these gods are - no interfering at all, for the most part. [...] You ask me, there's not that many immortals you can trust.